The GAO found that: (1) performance testing of the new computers was delayed and is currently scheduled to begin in August 1986; (2) the first new computer should be delivered in November 1986 and the last in December 1987; (3) the FAA has taken longer than anticipated to resolve software problems; (4) the FAA had reservations about whether the contractor would meet its testing deadline; (5) the contractor informed the FAA of additional costs to the project; and (6) operational and safety enhancements would be delayed 6 months.

The GAO believes more delays and cost increases to the project could occur.